Dilution or sample unit incompatible, Direction, Direct measurements – Hach-Lange TITRALAB 860_865 Reference Manual User Manual

Page 88: Disconnect electrodes, Display contrast, Titra lab

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Titra

Lab

®

TitraLab 860 and 865 Reference Manual

Page 88

Dilution or
sample unit
incompatible

Manual reprocessing error: The method used for reprocessing has
a sample definition different from the curve generated.

Example: you run a titration with a sample dilution programmed and
try to reprocess this curve in manual mode with no dilution
programmed for the sample.

Edit the Sample parameters of the method to be reprocessed.

Refer to "Reprocessing a curve (Manual mode)", page 182

.

Direction

Determines whether the addition of titrant increases or decreases the
pH or mV value.

This parameter informs the Titration Manager if the end point or the
Stop point is already passed before the start of the titration.

Example:

If the titration is performed with an acidic titrant on an alkaline sample,
the addition of titrant will decrease the pH value. In this case, select
Direction = Decreasing pH.

Enter in:

Edit method > Parameters menu
Edit reagent > Calibration parameters menu

Direct
measurements

Refer to "Display measurement", page 89

.

Disconnect
electrodes

Disconnect all connected electrodes.

Proceed as follows:

1.

Press 2 in the Electrode window.

2.

Press 2 Disconnect electrodes.

3.

Disconnect electrode from rear panel.

4.

Press

✓ to confirm.

5.

Repeat steps 3 and 4 for all other electrodes to be disconnected.

Display contrast

Refer to "Contrast", page 78

.

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